the conservative group that is list the town halls and list the critics to go and be heard, and rush limbaugh, whipping people into a frenzy comparing this to nazi policies. >> adolf hitler ruled like dictate, like barack obama. >> reporter: they're mobilizing hopes they'll out number in critics and the white house hopes that by remaining calm, the tactics will backfire. >> we can discuss the issues without being uncivilized. it's the same thing i tell my 6- year-old. >> reporter: to give an idea of how nasty the battle has become,the capitol hill police are investigating a death threat against a congressman from north carolina. chip read, cbs news, the white house. >>> at a meeting on the eastern shore, a congressman was one of many democrats experiencing that anger firsthand. republican senator martinez made it officials saying he'll resign 16 months early. >> today, i'm announcing the decision to step down effective upon a successor to take over. >> reporter: he says that the decision will allow him to spend time with his family in florida and governor charlie crist is going to replace ano